ACE_FTS_L2_iso
Variables
The table below lists the variables that are present in the HARP product that results from an ingestion of ACE_FTS_L2_iso data.
| field name | type | dimensions | unit | description |
|---|---|---|---|---|
| datetime | double | {time} | [seconds since 2000-01-01] | date and time of occultation 30 km geometric tangent point |
| datetime_start | double | {time} | [seconds since 2000-01-01] | date and time of start of measurement |
| datetime_stop | double | {time} | [seconds since 2000-01-01] | date and time of end of measurement |
| orbit_index | int32 | absolute orbit number | ||
| latitude | double | {vertical} | [degree_north] | latitude of 30 km geometric tangent point for occultation |
| longitude | double | {vertical} | [degree_east] | longitude of 30 km geometric tangent point for occultation |
| altitude | double | {vertical} | [km] | tangent altitude grid for retrieved parameters and species |
| temperature | double | {vertical} | [K] | temperature |
| pressure | double | {vertical} | [hPa] | pressure |
| density | double | {vertical} | [cm^-3] | atmospheric density |
| H2O_181_volume_mixing_ratio | double | {vertical} | [ppmv] | volume mixing ratio for H2O_181 |
| H2O_181_volume_mixing_ratio_uncertainty | double | {vertical} | [ppmv] | volume mixing ratio uncertainty for H2O_181. If this value is -888 the vmr was not retrieved but obtained by scaling the a priori value |
| H2O_171_volume_mixing_ratio | double | {vertical} | [ppmv] | volume mixing ratio for H2O_171 |
| H2O_171_volume_mixing_ratio_uncertainty | double | {vertical} | [ppmv] | volume mixing ratio uncertainty for H2O_171. If this value is -888 the vmr was not retrieved but obtained by scaling the a priori value |
| H2O_162_volume_mixing_ratio | double | {vertical} | [ppmv] | volume mixing ratio for H2O_162 |
| H2O_162_volume_mixing_ratio_uncertainty | double | {vertical} | [ppmv] | volume mixing ratio uncertainty for H2O_162. If this value is -888 the vmr was not retrieved but obtained by scaling the a priori value |
| CH4_311_volume_mixing_ratio | double | {vertical} | [ppmv] | volume mixing ratio for CH4_311 |
| CH4_311_volume_mixing_ratio_uncertainty | double | {vertical} | [ppmv] | volume mixing ratio uncertainty for CH4_311. If this value is -888 the vmr was not retrieved but obtained by scaling the a priori value |
| CH4_212_volume_mixing_ratio | double | {vertical} | [ppmv] | volume mixing ratio for CH4_212 |
| CH4_212_volume_mixing_ratio_uncertainty | double | {vertical} | [ppmv] | volume mixing ratio uncertainty for CH4_212. If this value is -888 the vmr was not retrieved but obtained by scaling the a priori value |
| index | int32 | {time} | zero-based index of the sample within the source product |
Mapping description
The table below details where and how each variable was retrieved from the input product.
| field name | mapping description | |
|---|---|---|
| datetime | path | /date |
| description | date field from header section converted to seconds since 2000-01-01 | |
| datetime_start | path | /start_time |
| description | start_time field from header section converted to seconds since 2000-01-01 | |
| datetime_stop | path | /end_time |
| description | end_time field from header section converted to seconds since 2000-01-01 | |
| orbit_index | description | extracted from the filename (assuming ssXXXXX... or srXXXXX... format); set to 0 if extraction of the value was not possible |
| latitude | path | /latitude |
| description | latitude field from header section | |
| longitude | path | /longitude |
| description | longitude field from header section | |
| altitude | path | /data section/z |
| temperature | path | /data section/T |
| pressure | path | /data section/P (atm) |
| density | path | /data section/dens |
| H2O_181_volume_mixing_ratio | path | /data section/H2O_181 |
| H2O_181_volume_mixing_ratio_uncertainty | path | /data section/H2O_181_err |
| H2O_171_volume_mixing_ratio | path | /data section/H2O_171 |
| H2O_171_volume_mixing_ratio_uncertainty | path | /data section/H2O_171_err |
| H2O_162_volume_mixing_ratio | path | /data section/H2O_162 |
| H2O_162_volume_mixing_ratio_uncertainty | path | /data section/H2O_162_err |
| CH4_311_volume_mixing_ratio | path | /data section/CH4_311 |
| CH4_311_volume_mixing_ratio_uncertainty | path | /data section/CH4_311_err |
| CH4_212_volume_mixing_ratio | path | /data section/CH4_212 |
| CH4_212_volume_mixing_ratio_uncertainty | path | /data section/CH4_212_err |